Halloween Crazy Head - Pau Tubau & Alan Wückert

The objective is to design and program in arudino, a project with a halloween theme, in which at least has to have a ulteasonic sensor, leds and servomotors. In our case it has been decided to make a terrifying head that moves by itself while illuminating and moving the eyes.

Electronic supplies

• x1 Arduino Uno r3
• x2 Red led
• x2 Dcmotor
• x1 Ultrasonic sensor
• x2 Servomotors
• x2 batterys 9V
• x2 360 ohms resistors
• x1 L298H (driber dcmotors)
• x1 DIY PCB
• x22 wires

Other supplies

• x2 wheels
• x1 terrorific mask
• x1 hat

Circuit in Thinkercad.

void routine01(unsigned long t){      

  unsigned long d = t - start_time;

  if(step == 0){

    digitalWrite(12, LOW);

    digitalWrite(13, LOW);

    start_time = t;

    step = 1;

  }

  else if (d < 300 && step == 1){

    digitalWrite(12, HIGH);

    digitalWrite(13, HIGH);

    start_time = t;

  }

  else if (d >= 300 && step == 1){

    digitalWrite(12, LOW);

    digitalWrite(13, LOW);

    start_time = t;

  }

  step = 0 ;

}

void routine02(unsigned long t){

  unsigned long d = t - start_time;

  if(step == 0){

   eyeleft.attach(A0);                    //attaches the servo on pin A5 to the servo object

   eyeright.attach(A1);                   //attaches the servo on pin A4 to the servo object

   int pos_1 = 0;

   int pos_2 = 180;

   while (pos_1 <= 180 && pos_2 >= 0) {

    eyeleft.write(pos_1); // tell servo to go to position in variable 'pos'

    eyeright.write(pos_2);           // tell servo to go to position in variable 'pos'

    delay(25);                       // waits 15 ms for the servo to reach the position

    pos_1 += 2;                      // plus 2 degrees

    pos_2 -= 2;                      // subtract 2 degrees

    start_time = t;                  // start_time now is the time it took to do the routine  

}

   step = 0;

 }

void routine03(unsigned long t){

  unsigned long d = t -start_time;

    digitalWrite(ENA, HIGH);                  

    digitalWrite(IN1, LOW);                    

    digitalWrite(IN2, HIGH);                    

    digitalWrite(ENB, HIGH);                  

    digitalWrite(IN3, HIGH);                  

    digitalWrite(IN4, LOW);                    

    start_time = t;          

}